Krishna Sailaja Muthyala
California City,CA
Summary
Detail-oriented and certified wireless network engineer with experience in WLAN testing, RF validation, access point configuration, and enterprise wireless deployments. Proficient in analyzing wireless network performance, configuring switching and routing protocols, and troubleshooting enterprise WLAN systems. Adept at working with industry-leading vendors such as Cisco, Aruba. Passionate about delivering reliable and high-performing wireless connectivity solutions.
Overview
4
4
years of professional experience
Work History
Wireless Testing Engineer
UL Solutions
04.2025 - Current
- Perform RF certification and compliance testing of wireless products (Access Points, IoT radios) using Keysight PXA (MXA Signal Analyzer) and signal generators.
- Measure critical RF parameters such as TX power, EVM, spectral masks, spurious emissions, frequency offset, and receiver sensitivity for 2.4 GHz, 5 GHz, and 6 GHz bands.
- Validate conformance to 802.11a/b/g/n/ac/ax-6GHz (Wi-Fi 6E) specifications under FCC and IC regulatory frameworks.
- Automate test flows using Python with SCPI commands for instrument control, log capture, and result validation.
- Calibrate test setups using RF isolators, shielded enclosures, attenuators, and precision antennas to reduce test noise and interference.
- Perform spectrum analysis across the 6 GHz U-NII bands to assess channel interference, leakage, and spectral efficiency.
- Work closely with certification teams to debug RF anomalies using waveform captures and I/Q trace analysis, contributing to final client certification readiness.
RF Intern
UL Solutions
05.2024 - 08.2024
- Perform RF certification and compliance testing of wireless products (Access Points, IoT radios) using Keysight PXA (MXA Signal Analyzer) and signal generators.
- Measure critical RF parameters such as TX power, EVM, spectral masks, spurious emissions, frequency offset, and receiver sensitivity for 2.4 GHz, 5 GHz, and 6 GHz bands.
- Validate conformance to 802.11a/b/g/n/ac/ax-6GHz (Wi-Fi 6E) specifications under FCC and IC regulatory frameworks.
- Automate test flows using Python with SCPI commands for instrument control, log capture, and result validation.
- Calibrate test setups using RF isolators, shielded enclosures, attenuators, and precision antennas to reduce test noise and interference.
- Perform spectrum analysis across the 6 GHz U-NII bands to assess channel interference, leakage, and spectral efficiency.
- Work closely with certification teams to debug RF anomalies using waveform captures and I/Q trace analysis, contributing to final client certification readiness.
Associate Software Engineer – Wireless Domain
Capgemini
09.2021 - 01.2023
- Performed Access Point (AP) validation and stability testing for a Tier-1 global network provider, focused on long-term wireless performance and reliability.
- Conducted 12–24-hour longevity tests using iPerf (TCP/UDP) traffic generators, ping, FTP uploads/downloads, and video streaming (VLC unicast/multicast) to assess AP behavior under stress.
- Rebooted APs, simulated client disconnects, and observed memory/resource leakage, interface resets, and AP crash recovery over extended uptime.
- Flashed APs with daily/weekly firmware builds via CLI and validated system logs, kernel messages, and WLAN driver behavior post-reboot and under load.
- Captured Wireshark logs during stability tests to verify continued beaconing, association handling, EAPOL responses, and DHCP stability.
- Configured AP testbeds for both standalone and controller-managed modes, managing SSIDs, VLANs, encryption (WPA2/WPA3), and traffic shaping.
- Raised and tracked long-term reliability issues using JIRA, including heatmap documentation of failure timelines, memory dumps, and recovery actions.
Trainee Software Engineer (WLAN Intern)
Global Edge Software Ltd (Capgemini)
03.2021 - 09.2021
- Assisted in Access Point (AP) stability and performance testing for enterprise WLAN environments across 2.4 GHz and 5 GHz bands.
- Executed extended longevity test cases (8–12 hours) involving continuous traffic loads (iPerf TCP/UDP), ping floods, and streaming media playback to monitor long-term AP performance and crash resilience.
- Observed and recorded AP behavior under stress, including disconnections, memory leaks, high CPU load, and packet drops.
- Used Wireshark to capture WLAN traffic and verify beacon intervals, DHCP lease stability, and packet retransmission trends over time.
- Performed initial AP setup and provisioning (SSID broadcast, WPA2 configuration, VLAN tagging), using web UI and CLI.
- Analyzed system and WLAN logs for signs of instability, including radio resets, kernel panics, or watchdog triggers.
- Documented test findings in structured logs and contributed to bug reporting with clear steps, logs, and expected vs. actual behavior.
Education
M.S. - Computer Science
University of North Texas
Denton, TX12.2024
B.Tech - ECE
Aditya College of Engineering
Rajahmundry01.2021
Skills
- Networking & Protocols: TCP/IP, UDP, DNS, DHCP, HTTP/HTTPS, ICMP, BGP, OSPF, VLAN, IPv4/IPv6
- Wireless Technologies: 80211 a/b/g/n/ac/ax, Wi-Fi 6E (6 GHz), RF Fundamentals, WLAN Security (WPA2/WPA3, 8021X/EAP), Bands and Steering, Roaming (80211r/k/v), DFS
- RF Testing: TX Power, EVM, Spectrum Mask, Receiver Sensitivity, Spurious Emissions (using Keysight PXA), 24/5/6 GHz testing
- AP Configuration & Validation: Manual AP setup via Web UI, SSID & Security Configuration, VLAN Tagging, Firmware Flashing, Stability Testing (12–24hr throughput & traffic tests)
- Tools & Platforms: Wireshark, JIRA, Python (SCPI automation), iPerf, VLC, FTP, Trello, MySQL, Terraform
- Vendors: Cisco, Aruba, Netgear
- OS & Systems: Windows, Linux, macOS, Android
Timeline
Wireless Testing Engineer
UL Solutions
04.2025 - Current
RF Intern
UL Solutions
05.2024 - 08.2024
Associate Software Engineer – Wireless Domain
Capgemini
09.2021 - 01.2023
Trainee Software Engineer (WLAN Intern)
Global Edge Software Ltd (Capgemini)
03.2021 - 09.2021
M.S. - Computer Science
University of North Texas
B.Tech - ECE
Aditya College of Engineering
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